Acetamide, N-(4-fluoro-3-nitrophenyl)- → N-(4-{[(4,4-Difluorocyclohexyl)methyl]amino}-3-nitrophenyl)acetamide
反応式
F[C:2]1[CH:7]=[CH:6][C:5]([NH:8][C:9](=[O:11])[CH3:10])=[CH:4][C:3]=1[N+:12]([O-:14])=[O:13].Cl.[F:16][C:17]1([F:25])[CH2:22][CH2:21][CH:20]([CH2:23][NH2:24])[CH2:19][CH2:18]1>CCO>[F:16][C:17]1([F:25])[CH2:22][CH2:21][CH:20]([CH2:23][NH:24][C:2]2[CH:7]=[CH:6][C:5]([NH:8][C:9](=[O:11])[CH3:10])=[CH:4][C:3]=2[N+:12]([O-:14])=[O:13])[CH2:19][CH2:18]1参加物
実験手順
N-(4-Fluoro-3-nitrophenyl)acetamide (1.15 g, 5.84 mmol) and [(4,4-difluorocyclohexyl)methyl]amine hydrochloride (1.30 g, 7.59 mmol) were stirred in 30 mL of EtOH containing TEA (2.40 mL, 17.5 mmol) at 80° C. for 48h. The solvent was evaporated. The residue was dissolved in EtOAc and washed with aqueous 5% KHSO4 solution, saturated aqueous NaHCO3 solution, saturated aqueous NaCl solution and dried over anhydrous Na2SO4. The product was crystallized from EtOAc. The left over mother liquor was purified by silica gel flash chromatography using 2:1/hexanes:acetone as eluent. Yield: 1.50 g (78%). 1H NMR (400 MHz, CHLOROFORM-D) δ 1.33-1.47 (m, 2H), 1.66-1.77 (m, 2H), 1.77-1.86 (m, 1H), 1.89-1.93 (m, 1H), 1.93-1.97 (m, 1H), 2.10-2.17 (m, 2H), 2.18 (s, 3H), 3.23 (dd, J=6.74, 5.76 Hz, 2H), 6.83 (d, J=9.37 Hz, 1H), 7.15 (s, 1H), 7.80 (dd, J=9.18, 2.54 Hz, 1H), 8.09 (d, J=2.54 Hz, 2H).
後処理
- customThe solvent was evaporated
- dissolutionThe residue was dissolved in EtOAc
- washwashed with aqueous 5% KHSO4 solution, saturated aqueous NaHCO3 solution, saturated aqueous NaCl solution
- dry with materialdried over anhydrous Na2SO4
- customThe product was crystallized from EtOAc
- waitThe left over mother liquor
- customwas purified by silica gel flash chromatography
出典と根拠
- ORDレコード
- ord-d8bf3163de764a21b830b9358ec428b6
- 出典データセット
- uspto-grants-2009_07
- 特許番号
- US07566788B2
反応ノート
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